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  <title>Returns an iterator for the current entry</title>
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    <li><a href="class.recursiveregexiterator.html">RecursiveRegexIterator</a></li>
    <li>Returns an iterator for the current entry</li>
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  <div id="layout-content"><div id="recursiveregexiterator.getchildren" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">RecursiveRegexIterator::getChildren</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.2.0, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">RecursiveRegexIterator::getChildren</span> &mdash; <span class="dc-title">Returns an iterator for the current entry</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-recursiveregexiterator.getchildren-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>RecursiveRegexIterator::getChildren</strong></span>(): <span class="type"><a href="class.recursiveregexiterator.html" class="type RecursiveRegexIterator">RecursiveRegexIterator</a></span></div>

  <p class="para rdfs-comment">
   Returns an iterator for the current iterator entry.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-recursiveregexiterator.getchildren-parameters">
  <h3 class="title">参数</h3>
  <p class="para">此函数没有参数。</p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-recursiveregexiterator.getchildren-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   An iterator for the current entry, if it can be iterated over by the inner iterator.
  </p>
 </div>


 <div class="refsect1 errors" id="refsect1-recursiveregexiterator.getchildren-errors">
  <h3 class="title">错误／异常</h3>
  <p class="para">
   An <span class="classname"><a href="class.invalidargumentexception.html" class="classname">InvalidArgumentException</a></span>
   will be thrown if the current entry does not contain a value that can be iterated over by
   the inner iterator.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-recursiveregexiterator.getchildren-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-3647">
    <p><strong>示例 #1 <span class="function"><strong>RecursiveRegexIterator::getChildren()</strong></span> example</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$rArrayIterator&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">RecursiveArrayIterator</span><span style="color: #007700">(array(</span><span style="color: #DD0000">'test1'</span><span style="color: #007700">,&nbsp;array(</span><span style="color: #DD0000">'tet3'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'test4'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'test5'</span><span style="color: #007700">)));<br /></span><span style="color: #0000BB">$rRegexIterator&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">RecursiveRegexIterator</span><span style="color: #007700">(</span><span style="color: #0000BB">$rArrayIterator</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'/^test/'</span><span style="color: #007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">RecursiveRegexIterator</span><span style="color: #007700">::</span><span style="color: #0000BB">ALL_MATCHES</span><span style="color: #007700">);<br /><br />foreach&nbsp;(</span><span style="color: #0000BB">$rRegexIterator&nbsp;</span><span style="color: #007700">as&nbsp;</span><span style="color: #0000BB">$key1&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">$value1</span><span style="color: #007700">)&nbsp;{<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(</span><span style="color: #0000BB">$rRegexIterator</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">hasChildren</span><span style="color: #007700">())&nbsp;{<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;print&nbsp;all&nbsp;children<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">echo&nbsp;</span><span style="color: #DD0000">"Children:&nbsp;"</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;foreach&nbsp;(</span><span style="color: #0000BB">$rRegexIterator</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getChildren</span><span style="color: #007700">()&nbsp;as&nbsp;</span><span style="color: #0000BB">$key&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">$value</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #0000BB">$value&nbsp;</span><span style="color: #007700">.&nbsp;</span><span style="color: #DD0000">"&nbsp;"</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;else&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">"No&nbsp;children\n"</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br /><br />}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程会输出：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
No children
Children: test4 test5
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-recursiveregexiterator.getchildren-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="recursiveregexiterator.haschildren.html" class="function" rel="rdfs-seeAlso">RecursiveRegexIterator::hasChildren()</a> - Returns whether an iterator can be obtained for the current entry</span></li>
   </ul>
  </p>
 </div>


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